Ethylene Response Factor (ERF) genes modulate plant root exudate composition and the attraction of plant parasitic nematodes

Dyer, Steven; Weir, Ryan; Cox, Deborah; Cheseto, Xavier; Torto, Baldwyn; Dalzell, Johnathan J.

doi:10.1016/j.ijpara.2019.09.001

Cited by 12 publications

(12 citation statements)

References 26 publications

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“…Genetic engineering of plants to enhance indirect defense has shown success in maize cultivar to enhance the constitutive production of ( E )-caryophyllene ( 21 ) to increase the recruitment of entomopathogenic nematodes . In plant–PPN interactions, the knockdown of ABC-C 6 transporter genes altered the root exudate composition and reduced the attraction of Meloidogyne and Globodera spp. , These studies show the potential application of crop improvement to develop cultivars that are resistant to economically important crop pests. Our findings suggest that masking the attractive signal, MeSA ( 16 ), with MeDiJA ( 28 ) could provide an avenue for interfering with host plant recognition by the nematodes.…”

Section: Resultsmentioning

confidence: 99%

“…The detected compounds and their quantitative variations at the different time points of root infection are shown in Table 1. Statistical variation in the amounts released between the different time points of infection was evident for o-cymene (2), (E)-isolimonene (3), β-pinene (4), (+)-(2)-carene (5), αphellandrene (6), p-cymene (8), β-phellandrene (9), (E)-βocimene (11), nonanal (15), valencene (26), viridiflorene (27), and MeDiJA (28). Notably, we found a 2−7-fold increase in the amounts of (+)-(2)-carene (5) released in the root volatiles at 2-DPI and 7-DPI, respectively.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…50 In plant−PPN interactions, the knockdown of ABC-C6 transporter genes altered the root exudate composition and reduced the attraction of Meloidogyne and Globodera spp. 15,16 These studies show the potential application of crop improvement to develop cultivars that are resistant to economically important crop pests. Our findings suggest that masking the attractive signal, MeSA (16), with MeDiJA (28) could provide an avenue for interfering with host plant recognition by the nematodes.…”

Section: And (I)mentioning

confidence: 97%

“…Specifically, exudates from the root tip attracted J2 compared to those from the upper parts of the roots . Recent studies have elucidated the molecular basis of tomato root exudate composition using virus-induced gene silencing, which showed that the knockdown of root-expressed ABC transporter genes and ethylene response factor ( ERF ) genes altered the root semivolatile components and differentially influenced the behavior of PPNs. , Specifically, the knockdown of ERF-E2 genes increased the attraction of Megalaima incognita and Globodera pallida J2 to the root exudates, while the knockdown of ABC-C 6 transporter genes caused repellence in the infective J2 of Meloidogyne and Globodera spp. These findings demonstrate a potential genetic opportunity for reducing the impact of PPNs on crops …”

Section: Introductionmentioning

confidence: 99%

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Compounds Associated with Infection by the Root-Knot Nematode, Meloidogyne javanica, Influence the Ability of Infective Juveniles to Recognize Host Plants

Kihika

Tchouassi

Ng’ang’a

et al. 2020

J. Agric. Food Chem.

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Plant root chemistry is altered by the parasitism of plant-parasitic nematodes (PPN). Here, we investigated the influence of the infective stage juveniles (J2) of Meloidogyne javanica in inducing tomato (Solanum lycopersicum) root volatiles and chemotactic effect on conspecifics. In olfactometer assays, J2 avoided the roots of 2-day infected plants but preferred 7-day-infected tomato compared to healthy plants. Chemical analysis showed a 2−7-fold increase in the amounts of monoterpenes emitted from tomato roots infected with M. javanica relative to healthy roots. In further bioassays, the monoterpenes β-pinene, (+)-( 2)-carene, αphellandrene, and β-phellandrene differentially attracted (51−87%) J2 relative to control. Concurrent reduction and increase in the levels of methyl salicylate and (Z)-methyl dihydrojasmonate, respectively, in the root volatiles reduced J2 responses. These results demonstrate that the host plant can alter its root volatile composition to inhibit PPN attack. The observed plant-produced inhibition of J2 warrants further investigation as a potential management tool for growers.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Results and Discussionmentioning

confidence: 99%

Section: And (I)mentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Compounds Associated with Infection by the Root-Knot Nematode, Meloidogyne javanica, Influence the Ability of Infective Juveniles to Recognize Host Plants

Kihika

Tchouassi

Ng’ang’a

et al. 2020

J. Agric. Food Chem.

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“…240 Root exudates from ERF-E2 knockout tomato were significantly more attractive to PPNs Meloidogyne incognita and Globodera pallida. 241 The downstream factors of melatonin signal transduction pathway showed various functions in regulating plant biotic stress tolerance. High conservation of NACs from cereal crops in clade C indicated that their conservative function in suppression of fungal infection.…”

Section: Biotic Stressmentioning

confidence: 99%

Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses

Gao

Chen

et al. 2023

Journal of Pineal Research

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The expansion of gene families during evolution could generate functional diversity among their members to regulate plant growth and development. Melatonin, a phylogenetically ancient molecule, is vital for many aspects of a plant's life. Understanding the functional diversity of the molecular players involved in melatonin biosynthesis, signaling, and metabolism will facilitate the regulation of plant phenotypes. However, the molecular mechanism of melatonin response signaling elements in regulating this network still has many challenges. Here, we provide an in‐depth analysis of the functional diversity and evolution of molecular components in melatonin signaling pathway. Genetic analysis of multiple mutants in plant species will shed light on the role of gene families in melatonin regulatory pathways. Phylogenetic analysis of these genes was performed, which will facilitate the identification of melatonin‐related genes for future study. Based on the abovementioned signal networks, the mechanism of these genes was summarized to provide reference for studying the regulatory mechanism of melatonin in plant phenotypes. We hope that this work will facilitate melatonin research in higher plants and finely tuned spatio‐temporal regulation of melatonin signaling.

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Cyst nematode bio‐communication with plants: implications for novel management approaches

Ochola

Coyne

Cortada

et al. 2020

Pest Management Science

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Bio‐communication occurs when living organisms interact with each other, facilitated by the exchange of signals including visual, auditory, tactile and chemical. The most common form of bio‐communication between organisms is mediated by chemical signals, commonly referred to as ‘semiochemicals’, and it involves an emitter releasing the chemical signal that is detected by a receiver leading to a phenotypic response in the latter organism. The quality and quantity of the chemical signal released may be influenced by abiotic and biotic factors. Bio‐communication has been reported to occur in both above‐ and below‐ground interactions and it can be exploited for the management of pests, such as cyst nematodes, which are pervasive soil‐borne pests that cause significant crop production losses worldwide. Cyst nematode hatching and successful infection of hosts are biological processes that are largely influenced by semiochemicals including hatching stimulators, hatching inhibitors, attractants and repellents. These semiochemicals can be used to disrupt interactions between host plants and cyst nematodes. Advances in RNAi techniques such as host‐induced gene silencing to interfere with cyst nematode hatching and host location can also be exploited for development of synthetic resistant host cultivars. © 2020 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Ethylene Response Factor (ERF) genes modulate plant root exudate composition and the attraction of plant parasitic nematodes

Cited by 12 publications

References 26 publications

Compounds Associated with Infection by the Root-Knot Nematode, Meloidogyne javanica, Influence the Ability of Infective Juveniles to Recognize Host Plants

Compounds Associated with Infection by the Root-Knot Nematode, Meloidogyne javanica, Influence the Ability of Infective Juveniles to Recognize Host Plants

Genetic and evolutionary dissection of melatonin response signaling facilitates the regulation of plant growth and stress responses

Cyst nematode bio‐communication with plants: implications for novel management approaches

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